A Genetic Study of a Newly Found Population of Siberian Salamander, Salamandrella keyserlingii (Amphibia, Caudata)

Matsui, Masafumi; Yoshikawa, Natsuhiko; Tanaka-Ueno, Tomoko; Sato, Takanori; Takenaka, Sen; Terui, Shigeharu; Oppata, Yasuyuki; Tominaga, Akira

doi:10.5358/hsj.38.122

Cited by 3 publications

(4 citation statements)

References 15 publications

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“…The Siberian salamander ( Salamandrella keyserlingii ) is one of the most widely distributed amphibian species globally ( Kuzmin, 1999 ), but in Japan, its distribution is limited to the Kushiro marsh ( Sato & Matsui, 2013 ) and Kamishihoro town ( Matsui et al, 2019 ) in Hokkaido, Japan. The Kushiro marsh has become increasingly dry in recent years due to development in the surrounding land ( Oki et al, 2005 ).…”

Section: Introductionmentioning

confidence: 99%

Projection range of eDNA analysis in marshes: a suggestion from the Siberian salamander (Salamandrella keyserlingii) inhabiting the Kushiro marsh, Japan

Takeshita

Terui²,

Ikeda³

et al. 2020

PeerJ

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Background Freshwater ecosystems are rapidly declining. The Siberian salamander (Salamandrella keyserlingii) which inhabits the Kushiro marsh in Hokkaido, Japan has lost some habitat due to human activity. There are many challenges associated with conventional monitoring methods, including cost, the need for specialist personnel, environmental impact, and ability to detect the presence of this species; thus, we investigated the feasibility of using environmental DNA (eDNA) analysis to detect its presence and identify its breeding grounds. Methods We performed tank experiments to confirm eDNA emission from egg sacs, larvae, and adult Siberian salamanders in the water. We also performed water sampling and visual observation of egg sacs in the Kushiro marsh during the end of the breeding season and the larval season. Results The tank experiments found eDNA emission from all growth stages. It also implied concentrated emissions just after spawning and after hatching, and limited emissions during the incubation phase in egg sacs. We also detected eDNA in the field, likely reflecting the distribution of egg sacs or larvae. Combining this data with visual observations, it was determined that the eDNA results from the field were best explained by the number of egg sacs within 7–10 m of the sampling point. Conclusions The results of this investigation show that the breeding sites and habitats of marshland species can successfully be monitored using eDNA analysis. They also suggest that the eDNA results from the marshes may reflect the biomass that is in close range to the sampling point. These results support the increased use of eDNA analysis in marshes and provide knowledge that could improve the interpretation of future results.

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Section: Introductionmentioning

confidence: 99%

Projection range of eDNA analysis in marshes: a suggestion from the Siberian salamander (Salamandrella keyserlingii) inhabiting the Kushiro marsh, Japan

Takeshita

Terui²,

Ikeda³

et al. 2020

PeerJ

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“…keyserlingii but S . keyserlingii has restricted in a small area in Kushiro Marsh and Kamishihoro (Matsui et al, 2019), strongly suggesting an ecological interference from H . retardatus against S .…”

Section: Discussionmentioning

confidence: 99%

“…retardatus as suggested by our modeling, which also caused disjunction of the Kamishihoro and Kushiro populations of S . keyserlingii at 0.34 million years ago (Matsui et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

“…Recently, one small new population of S . keyserlingii was reported from Kamishihoro, central Hokkaido Island, which is roughly 100 km away from Kushiro Marsh (Matsui et al, 2019). Understanding on how two species have come to co‐occur, how their habitat segregations are kept presently, and their estimated geographic ranges in Hokkaido is necessary for evolutional study and establishing practical conservational acts of the two species.…”

Section: Introductionmentioning

confidence: 99%

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Ecological niche differentiation of two salamanders (Caudata: Hynobiidae) from Hokkaido Island, Japan

Tran

Terui²,

Nomoto

et al. 2020

Ecological Research

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Understanding environmental factor determining ecological niche is very important to elucidating the distribution of species, and also revealing how closely related species are able to coexist in a particular region. Here, we applied ecological niche modeling to develop the ecological niches of two hynobiid salamanders: Salamandrella keyserlingii and Hynobius retardatus which are co‐occurring on Hokkaido Island, Japan. We, then, tested hypotheses about ecological niche differentiation between the two species. Our models showed that the potential distribution of S. keyserlingii was strictly limited to a small area at Kushiro Marsh, while the suitable distribution of H. retardatus was covered widely on Hokkaido Island. The results revealed the little geographic range overlap and the differentiation on the requirements of the ecological condition between the two species. We found nonequivalent niches in identity tests and counterintuitive results in background tests, indicating that S. keyserlingii has used a habitat subset of H. retardatus. Overall, our result contributed to understand the ecological niche space, and suggest the historical formation of these species on Hokkaido Island. The models can also be used to aid conservation purposes, such as habitat management, planning and designation of protected areas.

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Interspecific interactions between coexisting Siberian and Ezo salamander larvae examined by stable isotope analyses

Terui¹,

Furuta

Kohmatsu

et al. 2022

Limnology

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A Genetic Study of a Newly Found Population of Siberian Salamander, Salamandrella keyserlingii (Amphibia, Caudata)

Cited by 3 publications

References 15 publications

Projection range of eDNA analysis in marshes: a suggestion from the Siberian salamander (Salamandrella keyserlingii) inhabiting the Kushiro marsh, Japan

Projection range of eDNA analysis in marshes: a suggestion from the Siberian salamander (Salamandrella keyserlingii) inhabiting the Kushiro marsh, Japan

Ecological niche differentiation of two salamanders (Caudata: Hynobiidae) from Hokkaido Island, Japan

Interspecific interactions between coexisting Siberian and Ezo salamander larvae examined by stable isotope analyses

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